trio vs triplex

trio

noun
  • A group of three people or things. 

  • A piece of music written for three musicians. 

  • A group of three musicians. 

  • Any cocktail made with a spirit, a liqueur, and a creamy ingredient. 

  • A passage in the middle of a minuet, frequently in a different key. 

triplex

noun
  • Triple time. 

  • A building with three apartments or divisions. 

  • A dwelling unit with three floors. 

  • A throwing motion where three balls are thrown with one hand at the same time. 

verb
  • To make triplex. 

adj
  • Having three units, divisions, suites, apartments 

  • Having three floors 

How often have the words trio and triplex occurred in a corpus of books? (source: Google Ngram Viewer )